-29.5% is the change from 634 to 447
Calculation steps:
[( 447 - 634 ) ÷ 634] x 100 = -29.5%
Formula
Percentage change = [(447 - 634) / 634] x 100
Subtract the new number by the original number
447 - 634 = -187
-187 ÷ 634 = -0.2949526813880126
-0.2949526813880126 x 100 = -29.5%